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https://codeberg.org/polarisfm/youtube-dl
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add pbskids
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Scott
parent
8f841fafcd
commit
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235
youtube_dl/extractor/pbskids.py
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235
youtube_dl/extractor/pbskids.py
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# coding: utf-8
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from __future__ import unicode_literals
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import re
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from .common import InfoExtractor
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from ..compat import compat_str
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from ..utils import (
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ExtractorError,
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determine_ext,
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int_or_none,
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float_or_none,
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js_to_json,
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orderedSet,
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strip_jsonp,
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strip_or_none,
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unified_strdate,
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url_or_none,
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US_RATINGS,
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)
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class PBSKIDSIE(InfoExtractor):
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IE_NAME = 'pbskids'
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IE_DESC = 'Public Broadcasting Service (PBS) for Kids'
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_VALID_URL = r'''(?x)https?://
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(?:
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# Article with embedded player
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pbskids\.org/video/[^/]+/(?P<episode_id>)
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)
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'''
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_GEO_COUNTRIES = ['US']
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_TESTS = [
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{
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'url': 'https://pbskids.org/video/super-why/2206965769',
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'md5': '173dc391afd361fa72eab5d3d918968d',
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'info_dict': {
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'id': '2206965769',
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'ext': 'mp4',
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'title': 'Jasper\'s Cowboy Wish',
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'duration': 1510,
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},
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'params': {
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'skip_download': True, # requires ffmpeg
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},
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},
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]
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_ERRORS = {
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101: 'We\'re sorry, but this video is not yet available.',
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403: 'We\'re sorry, but this video is not available in your region due to right restrictions.',
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404: 'We are experiencing technical difficulties that are preventing us from playing the video at this time. Please check back again soon.',
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410: 'This video has expired and is no longer available for online streaming.',
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}
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def _real_initialize(self):
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cookie = (self._download_json(
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'http://localization.services.pbs.org/localize/auto/cookie/',
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None, headers=self.geo_verification_headers(), fatal=False) or {}).get('cookie')
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if cookie:
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station = self._search_regex(r'#?s=\["([^"]+)"', cookie, 'station')
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if station:
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self._set_cookie('.pbs.org', 'pbsol.station', station)
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def _extract_webpage(self, url):
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mobj = re.match(self._VALID_URL, url)
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description = None
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video_id = None
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display_id = None
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info = None
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episode_id = mobj.group('episode_id')
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if episode_id:
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webpage = self._download_webpage(url, episode_id)
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description = self._html_search_meta(
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'description', webpage, default=None)
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upload_date = unified_strdate(self._search_regex(
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r'air_date"\:"([^"]+)"',
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webpage, 'upload date', default=None))
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# m3u8 url
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MULTI_PART_REGEXES = (
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r'URI"\:"https?\:.?/.?/urs\.pbs\.org.?/redirect.?/([\d\w]+)',
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)
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for p in MULTI_PART_REGEXES:
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tabbed_videos = orderedSet(re.findall(p, webpage))
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if tabbed_videos:
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return tabbed_videos, episode_id, upload_date, description
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if not video_id:
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page = self._download_webpage(url, 0)
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data = self._extract_video_data(page, 'video data', 0)
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info = data.get('video_obj')
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video_id = info.get('URI').replace('https://urs.pbs.org/redirect/','').replace('/','')
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display_id = data.get('video_id')
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return video_id, display_id, None, description, info
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def _extract_video_data(self, string, name, video_id, fatal=True):
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return self._parse_json(
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self._search_regex(
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[r'window\._PBS_KIDS_DEEPLINK\s*=\s*({.+?});'],
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string, name, default='{}'),
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video_id, transform_source=js_to_json, fatal=fatal)
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def _real_extract(self, url):
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video_id, display_id, upload_date, description, info = self._extract_webpage(url)
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if isinstance(video_id, list):
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entries = [self.url_result(
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'https://urs.pbs.org/redirect/%s/?format=json' % vid_id, 'PBSKIDS', vid_id)
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for vid_id in video_id]
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return self.playlist_result(entries, display_id)
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redirects = []
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redirects.append({"url":'https://urs.pbs.org/redirect/%s/' % video_id, 'eeid':display_id})
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if upload_date is None:
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upload_date = unified_strdate(info.get('air_date'))
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formats = []
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http_url = None
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for num, redirect in enumerate(redirects):
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redirect_id = redirect.get('eeid')
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redirect_info = self._download_json(
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'%s?format=json' % redirect['url'], display_id,
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'Downloading %s video url info' % (redirect_id or num),
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headers=self.geo_verification_headers())
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if redirect_info['status'] == 'error':
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message = self._ERRORS.get(
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redirect_info['http_code'], redirect_info['message'])
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if redirect_info['http_code'] == 403:
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self.raise_geo_restricted(
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msg=message, countries=self._GEO_COUNTRIES)
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raise ExtractorError(
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'%s said: %s' % (self.IE_NAME, message), expected=True)
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format_url = redirect_info.get('url')
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if not format_url:
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continue
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if determine_ext(format_url) == 'm3u8':
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formats.extend(self._extract_m3u8_formats(
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format_url, display_id, 'mp4', m3u8_id='hls', fatal=False))
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else:
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formats.append({
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'url': format_url,
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'format_id': redirect_id,
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})
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if re.search(r'^https?://.*(?:\d+k|baseline)', format_url):
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http_url = format_url
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self._remove_duplicate_formats(formats)
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m3u8_formats = list(filter(
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lambda f: f.get('protocol') == 'm3u8' and f.get('vcodec') != 'none',
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formats))
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if http_url:
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for m3u8_format in m3u8_formats:
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bitrate = self._search_regex(r'(\d+)k', m3u8_format['url'], 'bitrate', default=None)
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# Lower qualities (150k and 192k) are not available as HTTP formats (see [1]),
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# we won't try extracting them.
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# Since summer 2016 higher quality formats (4500k and 6500k) are also available
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# albeit they are not documented in [2].
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# 1. https://github.com/ytdl-org/youtube-dl/commit/cbc032c8b70a038a69259378c92b4ba97b42d491#commitcomment-17313656
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# 2. https://projects.pbs.org/confluence/display/coveapi/COVE+Video+Specifications
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if not bitrate or int(bitrate) < 400:
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continue
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f_url = re.sub(r'\d+k|baseline', bitrate + 'k', http_url)
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# This may produce invalid links sometimes (e.g.
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# http://www.pbs.org/wgbh/frontline/film/suicide-plan)
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if not self._is_valid_url(f_url, display_id, 'http-%sk video' % bitrate):
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continue
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f = m3u8_format.copy()
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f.update({
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'url': f_url,
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'format_id': m3u8_format['format_id'].replace('hls', 'http'),
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'protocol': 'http',
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})
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formats.append(f)
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self._sort_formats(formats)
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rating_str = info.get('rating')
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if rating_str is not None:
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rating_str = rating_str.rpartition('-')[2]
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age_limit = US_RATINGS.get(rating_str)
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subtitles = {}
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closed_captions_url = info.get('closed_captions')[0].get('URI').replace('\\','')
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if closed_captions_url:
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subtitles['en'] = [{
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'ext': 'ttml',
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'url': closed_captions_url,
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}]
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mobj = re.search(r'/(\d+)_Encoded\.dfxp', closed_captions_url)
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if mobj:
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ttml_caption_suffix, ttml_caption_id = mobj.group(0, 1)
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ttml_caption_id = int(ttml_caption_id)
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subtitles['en'].extend([{
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'url': closed_captions_url.replace(
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ttml_caption_suffix, '/%d_Encoded.srt' % (ttml_caption_id + 1)),
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'ext': 'srt',
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}, {
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'url': closed_captions_url.replace(
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ttml_caption_suffix, '/%d_Encoded.vtt' % (ttml_caption_id + 2)),
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'ext': 'vtt',
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}])
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# info['title'] is often incomplete (e.g. 'Full Episode', 'Episode 5', etc)
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# Try turning it to 'program - title' naming scheme if possible
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alt_title = info.get('program', {}).get('title')
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if alt_title:
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info['title'] = alt_title + ' - ' + re.sub(r'^' + alt_title + r'[\s\-:]+', '', info['title'])
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description = info.get('description') or info.get(
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'program', {}).get('description') or description
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return {
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'id': video_id,
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'display_id': display_id,
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'title': info['title'],
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'description': description,
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'thumbnail': info.get('mezzanine'),
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'duration': int_or_none(info.get('duration')),
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'age_limit': age_limit,
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'upload_date': upload_date,
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'formats': formats,
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'subtitles': subtitles,
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#'chapters': chapters,
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}
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